7.28-W, High-Energy, Conductively Cooled, Q-Switched Tm,Ho:YLF Laser

7.28-W, High-Energy, Conductively Cooled, Q-Switched Tm,Ho:YLF Laser

A diode-side-pumped laser oscillator with a Tm,Ho:YLF rod conductively cooled to -80 °C was developed. A Q-switched pulse energy of 104 mJ was achieved at a pulse repetition frequency of 70 Hz, corresponding to an average output power of 7.28 W. In addition, the maximum Q-switched pulse energy of 12...

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Veröffentlicht in:IEEE photonics technology letters 2017-01, Vol.29 (1), p.134-137
Hauptverfasser: Sato, Atsushi, Aoki, Makoto, Ishii, Shoken, Otsuka, Ryouhei, Mizutani, Kohei, Ochiai, Satoshi
Format: Artikel
Sprache:eng
Schlagworte:
conductive-cooling
Diode-pumped lasers
Laser excitation
Laser modes
Measurement by laser beam
Power generation
Power lasers
Pump lasers
Q-switched lasers
rare-earth-doped crystals
Surface emitting lasers
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Zusammenfassung:A diode-side-pumped laser oscillator with a Tm,Ho:YLF rod conductively cooled to -80 °C was developed. A Q-switched pulse energy of 104 mJ was achieved at a pulse repetition frequency of 70 Hz, corresponding to an average output power of 7.28 W. In addition, the maximum Q-switched pulse energy of 125 mJ was obtained at 50 Hz. Even at the maximum output level, the beam quality factor M 2 was measured to be ≤ 1.5. To the best of our knowledge, this is the highest average output power reported for a 100-mJ-class Q-switched 2-μm laser oscillator using a conductively cooled laser head.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2016.2629763